You searched for: Creator Levette, G. M. (Gilbert M.) Remove constraint Creator: Levette, G. M. (Gilbert M.) Date Created 1874 Remove constraint Date Created: 1874 Pages 0-99 pages Remove constraint Pages: 0-99 pages Publisher Indiana. Geological Survey Remove constraint Publisher: Indiana. Geological Survey Subject Topical Subject: IGS Annual Reports Remove constraint Subject: Topical Subject: IGS Annual Reports